package exception;

public class FinallyDemo {
    public static void main(String[] args) {
        System.out.println("程序开始了");

        try {
            String line = "null";
            System.out.println(line.length());
            return;
        } catch (NullPointerException e) {
            System.out.println("捕获到空指针异常: " + e.getMessage());
        } finally {
            System.out.println("finally代码块执行了");
        }

        System.out.println("程序结束了");
    }
}
